compiler/*:
Add copyright messages.
Change all occurences of *.nl in comments to *.m.
compiler/mercury_compile.pp:
Change the output to the .dep files to use *.m rather than *.nl.
(NOTE: this means that `mmake' will not work any more if you
call your files *.nl!!!)
code_util.nl, float.nl, llds.nl, mercury_builtin.nl, opt_debug.nl,
parser.nl, polymorphism.nl, sp_lib.nl, string.nl, string.nu.nl,
type_util.nl, typecheck.nl, unify_gen.nl:
Implement floating point.
Makefile.common:
Remove `-include test.dep' line. Use Mmake.
int.nl:
Update a few of the comments.
io.nu.nl:
For Sicstus Prolog, if main/2 is not defined then enter the
debugger.
Makefile.common:
Add some targets for compiling the compiler and the library.
type_util.nl, dense_switch.nl, switch_gen.nl, polymorphism.nl:
Rename inttype, chartype, etc. as int_type, char_type, etc.
Add polymorphic_type.
modes.nl, mode_errors.nl:
Report an error for direct attempts to unify higher-order pred types.
(Of course, we don't catch indirect attempts via polymorphic types -
that would require global analysis. For them, we report the error
at runtime.)
modes.nl:
Remove unreachable code from conjuctions.
(XXX also should do this for if-then-else.)
options.nl:
Turn -p off by default. I'll turn it on again when it works ;-)
polymorphism.nl:
Fix some bugs:
- I had forgotten to update the argmodes of the modified
procedures
- I was updating the argtypes and attempting to use there
old value. I fixed this by splitting the algorithm
into two passes.
- to compute the types of the arguments to a call,
apply the type mapping from the _caller_ not the callee.
Also improve efficiency in a couple of places.
hlds.nl:
Add some new access predicates required by polymorphism.nl.
list.nl:
Add a new predicate list__duplicate, which is used by polymorphism.nl.
typecheck.nl, type_util.nl:
Move the type_unify routines from typecheck.nl into type_util.nl,
since they're also needed by polymorphism.nl.
term.nl:
Export term__apply_rec_substitution_to_list, since it's needed
by polymorphism.nl.
- - - - - - - - - - - - - - - - - - - - - - - - -
mode_util.nl, type_util.nl:
Move some routines from mode_util.nl to type_util.nl, where they
really belong.
- - - - - - - - - - - - - - - - - - - - - - - - -
make_hlds.nl, code_util.nl, typecheck.nl:
Mark builtin predicates as "external" in make_hlds.nl,
rather than checking for them as a special case in typecheck.nl.
- - - - - - - - - - - - - - - - - - - - - - - - -
prog_io.nl, hlds.nl, typecheck.nl:
For documentation purposes, define equivalent types `tvar',
`tvarset', `tsubst' for type variables, type varsets, and
type substitutions.
- - - - - - - - - - - - - - - - - - - - - - - - -
mercury_compile.pp, options.nl:
Change the handling of the --dump-hlds option so that you can
now dump the HLDS after any of the 12 HLDS transformation passes.
- - - - - - - - - - - - - - - - - - - - - - - - -
make_hlds.nl:
Report an error if there are clauses for an imported predicate.
- - - - - - - - - - - - - - - - - - - - - - - - -
io.nu.nl:
Add a new predicate r/1 which is like run/1 except that
you pass it a string rather than a list of atoms.
So now you can do
$ mercury_compile.debug
Mercury Interpreter 0.1
NU-Prolog 1.6.4
1?- r("mc -options blah blah blah").
*.nl:
Replace all occurrences of `not(Vars, Goal)' with just
plain `not(Goal)'.
type_util.nl, switch_gen.nl:
Higher-order pred types are not user-defined types.
Add a `predtype' type category for them.
call_gen.nl:
Change call_closure/2 to call_closure/3 (with liveinfo).
Plus a little bit of random hacking.
term.nl:
In term__create_var, use bit reversals rather than random numbers
to ensure that the binary trees remain balanced.
call_gen.nl:
For polymorphic unifications, generate a call to fatal_error().
code_gen.nl, hlds.nl, make_hlds.nl, modes.nl, unify_proc.nl:
Move the unify_request data structure from code_info to the HLDS,
and move the unify_request handling from code_gen.nl to modes.nl.
This is because we now generate HLDS code rather than LLDS code
for complicated unifications.
code_util.nl, hlds_out.nl:
Do some special name mangling for =/2.
float.nl, typecheck.nl, undef_types.nl, term.nl, hlds.nl:
Until we implement `float' properly, define it as an abstract type
in float.nl.
hlds.nl, make_hlds.nl:
Rename `local_pred, imported_pred, exported_pred' to just
`local, imported, exported' since they also apply to types, etc.,
not just to preds.
mercury_compile.pp, mercury_to_goedel.nl, prog_util.nl:
Replace to goedel__ prefixes in prog_util.nl with prog_util__.
std_util.nl:
Change the code for semidet_succeed to avoid determinism warning.
lots of files:
Make a start at implementing code generation for complicated
unifications. In the HLDS, change complicated_unify/4 to
complicated_unify/2 since we didn't need the extra two args
after all.
peephole.nl:
A couple of minor efficiency improvements.
queue.nl:
Add queue__queue_to_list/2.
hlds_out.nl:
Minor improvements to the output.
code_info.nl, type_util.nl:
Change make_type_id to fail rather than call error/1
if the type is not valid.
undef_types.nl:
Report invalid types.
mode_util.nl:
Add a new pred `type_constructors'.
modes.nl:
Detect determinism of deconstruction unifications properly,
using the type information.
code_info.nl:
Tidy up the code for code_info__cons_id_to_tag.
prog_io.nl, mode_util.nl, mercury_to_mercury.nl:
Add new inst `free(Type)' and new inst_names `typed_ground(Type)'
and `typed_inst(Type, Inst)' so that we can propagate type
information through the mode system.
Do some of the work necessary to propagate type info to modes.
type_util.nl:
Add an extra output argument to type_to_type_id so that it can
return the type's arguments; also fix a determinism error in
type_to_type_id.
hlds.nl:
Add a comment.
list.nl:
Fix the determinism annotation for same_length.
map.nl:
Add map__apply_to_list.
mode_info.nl:
Add mode_info__get_types_of_vars.
Makefile.mercury:
Fix the definition of MERCC.
hlds.nl:
For each discriminated union type, store the tags for the
constructors for that type, and store whether
or not the type is an enumeration type.
make_hlds.nl, make_tags.nl:
Added a new file `make_tags.nl' which is caled from make_hlds.nl
to computes the above info.
type_util.nl:
In type_is_enumeration, use the flag stored in the HLDS rather
than recomputing it on demand.
undef_types.nl:
Minor change to match the changes in hlds.nl.
mercury_compile.nl:
Ensure that foo.err depends on foo.nl.
Dump the hlds before liveness analysis as well as after
compilation (this is probably just a temporary hack).
modes.nl, mode_errors.nl, delay_info.nl, mode_info.nl, undef_modes.nl:
Break modes.nl up into separate modules.
toplevel.nl (plus LOTS of other files):
Change the way module imports are handled. Fix the resulting missing
import problems found in most of the modules.
mode_util.nl:
Add predicate inst_is_bound_to_functors/3.
switch_detection.nl:
New file. Still very incomplete.
meta.nl:
Remove. This file was old junk.
interpreter.nl:
Fix bug in mode declaration.
hlds.nl, mercury_to_mercury.nl:
Fix mode error in mercury_to_mercury.nl.
modes.nl:
Fix bug in handling of `erroneous' preds.
Fix a bunch of other errors including some mode errors.
prog_io.nl:
Fix type error introduced by last change.
Fix mode error in DCG expansion code.
type_util.nl:
Work around scoping problem with \=.
typecheck.nl:
Fix mode error.
prog_io.nl:
- Add a new inst `not_reached' (intended for internal use by the
compiler, but for the moment at least we also allow it in user
code).
- Parse abstract inst definitions, with the syntax
:- inst foo is private.
type_util.nl, typecheck.nl, codegen.nl, Makefile, doit.nl:
- Add a new module `type_util'.
- Move make_type_id from typecheck.nl to type_util.nl.
- Rename vartype_to_type as classify_type, move it from
codegen.nl to type_util.nl, and modify the interface slightly.
- Move the type_is_enumeration stub from codegen.nl to type_util.nl,
and implement it.
- Implement type_is_atomic.
modes.nl:
- Distinguish between simple_unify's and complicated unifies by
calling type_is_atomic.
- Check that the final insts of the head vars match that specified
by the mode declaration.
- Handle (some cases of) unreachable code, using the `not_reached'
inst. More work needed on this.
- Improve the error message in the case where there is a single
delayed goal in a conjunction. (Instead of printing out the
generic "mode error in conjunction" message, we now print out
the error message for the delayed goal in question.)
- Fix bug where it didn't realize that bound('.'(ground, ground))
was the same as ground (due to missing clauses for inst_is_compat_3).
Most of these changes have not yet been tested.
